Damper for fireplaces



Nov. 22, 192

- 1,650,159 M. SERDYN DAMPER FOR FIREPLACES Filed Ju1yl9, 1927 2Sheets-Sheet 1 Nov. 22, 1927. 1,650,159

M. SERDYN DAMPER FOR FIREPLACES Filed Ju1y19, 1927 2 Sheets-Sheet 2 1 NVEN TOR.

BY W W/1 TTORNEY.

Patented Nov. 22, 1927.

' MATTHEW snnmm, or ROYAL ioAx," MICHIGAN.

DAEPIZR FOR ZFIREPLACES.

Application filed July l This invention relates to damperszfo fireplaces and has tor an important object thereof the provisionoi a dampercasing f r :fire places, providing an elficientguide for use by masonsin the construction of :the

tire place; v a

A further object of the inventionis to provide adevice of this characterso constructed that the necessity for plaste ng 10. ootherwiseheat-insulating the rear wallet the damper-is eliminated endaa cnstmctlon provided which may-be readi y cleansed.

A turthereobject of the invention is to provide a damper construction,wherein the damper shelfprovicles no only mounting for the usual damper,but likewise provides a receptacle for the collection of s ot. A furtherobjector the inventionis to provide in combination with the damperfshelfa movable damper element wh h vmay be mployed to remove from thedamp r :sl-ielt any co le ted soot r These other oh'ects I attain by theconstruction shown in the accompanying drawings, wherein for, thepurpose .of illustration is shown a preferred embodiment .of myinvention and whereinz 1 v .Figure ,1 s a front elevation of a fir placeembodying. (a damper constructed in accordance with-myinvention; Figure,,2 is 7 an enlarged the line j2-2 of Figure 1.; I

Figure 3 is a vertical sectional view through the -,damper,element onthe line. .3?--3 of Fi ure 2; I v I 1 Figure {l is a perspective, viewof the damper plate. a

g Referring now more particularly to. the drawings, the damper casing istermed of sheet metal, the sides looivwhichconverge upwardly, so thatthey are spaced apart at. their lower ends a distance equal ,to thewidth vof the fire place with which they are to be 7 employed and attheir upper ends a distance ,equal to the width of the chimney which isto be employed. At their lower ends, these side walls have out-turnedflanges 11 adapted to enter between courses of the gmasonary :12 lfirornwhich the fire place is formed and at their upper ends have upwardlyextending flanges 13 adapted to enter between and closely engage againstopposecl sides oi the .fluelining 14: of the chimney.

sectional view on i The front wall of the casing "has :an inter{ mediatevertical section 15 forming the front wall of the front oftheldampercasing, jBe- 1927. we no. 206,911,]

low this intermediate section, the front wall n line 'outwardl Ianddownwardly; as in dicated at 16, an has, at the lower end of thisoutwardly and downwardly inclining section, a ho izontal utwardlyextending flange ,17 forming the support for the masonly a ov the .fi ep ace! Above the throat formingsection, the front wall inclines11pwardly' and rearwardly, as indicated at 17 and vthe upper end of thisupward y. and rearwar-(11y extendin t nding .flange' 1% extending intond fitting aga ns the .flu lining at the front we. thereof. It will benoted thatthe' inclined portion 1,7 and the inclined Side .mcIIiberSWillsection has a vertically ex- .form a support nponwhich'the lower endjofthe fluefl'ining may be, seated.

The rearwa'll of the damper'casingljhas an intermediate verticallyextending t roat forming section 19 which is consldera'bly,sjhorter'than the vertical section 15 of the front wall and, has itslower end spaced slightly above the lower end ofthe vertical section ofthe front Wall. Below the section 19,, the rear-,wa'll inclines"rearwardly and downwardly, as indicated at 20, and this.

rearwardly and downwardl inclining section has'at its lower end a jorizontal rearwardly directed flange 21 adapted to enter between coursesof the masfonr "of the'rear wall 2210i the the place. v At t e upper endof the vertically extending section 19, the rear Wall extendshorizontally rearwardly, ,as indicated at 23, to storm the damper shelf,the forward'edge of which projects slightly forwardlyfof the verticallineroif the forward wall ,xofthe flue-lining and the rear edge of whichconnects to a second (vertically extending section 251, the upper endofwh'ich extends into the flue linin and fits a a'inst the rear wallthereof. It will be obvlous that with a damper casing of thiscon- .struct'ion, the mason can exactly follow the outlineof the outer face ofthe damper cas- 'ing in the construction of the fire place and therebyform an accurate and properly operating throat and Shelf for the fireplace;

In combination with a damper casing of this structure, 'I provide a.damper plate 25 of the same size asfthefhorizontally extending portion23 of the rear wall and adapted to seat thereon. This plate has securedthereto adjacent its side edges handles 26 which areshaped to c nform tothe shaping of the rear wall and lie ,closely'thereagains't.

By means of thesehajndles, the damper plate may be moved to close thethroat 27 of the damper or may be moved forwardly and then tilted, asindicated in Figure 2, to cause soot which has collected upon the uppersurface thereof to discharge downwardly through the throat to cleansethe shelf. To assist in the cleansing operation, the interior of thefront wall adjacent the bottom of the vertical section 15 thereof isprovided with hooks 28, by means of which a receptacle for the receptionof this soot may be supported. r

In order to permit tilting of the plate 25, the rear corners of the sideedges are cutaway, as indicated at 29, providing the clearancenecessary, due to the convergence of the side walls 10. Attention isdirected to the fact that with the construction above recited, upwardlymoving currents of heated air engaging against the rear wall 30 of thefire place will move upwardly in close contact to the rear wall of thedamper and will not tend to engage against the front wall below thevertical wall 15,. so that there is no tendency to baffling circulationof the smoke in the lower end of the damper casing. "The course ofthesmoke, in passing .from the fire place, is indicated by arrows inFigure 2, and it will be noted that since the smoke and heated air havea tendency to cling to the front wall during its upward passage, apocket is provided at the rear of the chimney, permitting a down draft,as indicated by the arrows, by means of which :soot removed'from theproducts of combustion may be carried to the shelf 25 and depositedthereon. vThis current of air will serve to prevent overheating ofthe'rear wall 24, thus eliminating the necessity for plastering orotherwise fire-proofing this rear wall.

Since the construction hereinbefore set forth is capable of a certainrange of change and modification without materially departing from thespirit of the invention, I do not limit, myself to such specificstructure except as hereinafter claimed.

I claim 1. A sheet metal damper casing comprising side, front and rearwalls, the side walls converging upwardly, the front and rear wallsembodying confronting vertical portions combining with the side walls toproduce a throat, the vertical section of the rear wall being ofconsiderably less length than the vertical section of the front wall andhaving its lower end disposed slightly above the lower end of thevertical section of the front wall, the rear wall from the upper end ofthe vertical section extending horizontally rearwardly to provide adamper shelf.

2. A sheet metal damper casing comprising side, front and rear walls,the side walls of the vertical section extending horizontally rearwardlyto provide a damper shelf, the front wall at the upper end of itsvertical section having an upwardly and rearwardly inclining section theinner upper edge of which slightly overlaps the damper shelf.

3. A sheet metal damper casing comprising side, front and rear walls,the sidewalls converging upwardly, the front and rear walls embodyingconfronting vertical portions combining with the side walls to 'producea throat, the vertical section of the rear wall being of considerablyless length than the vertical section of the front wall and having itslower end disposed slightly above the lower end of the vertical sectionof the front wall, the rear wall from the up per end of the verticalsectionextending horizontally rearwardly to provide a damper shelf, adamper plate seated upon the damper shelf and control elements for thedamper plate and extending downwardly through the throat of the dampercasing. I

f. A sheet metal damper'casing comprising side, front and rear walls,the side walls converging upwardly, the front and rear walls embodyingconfronting vertical portions combining with the side walls to pro ducea throat, the vertical section of the rear wall being of considerablyless length than the vertical section of the front Wall and having itslower end disposed slightly above the lower end of the vertical sectionof the front wall, the rear wall from the upper end of the verticalsection extending horizontally rearwardly to provide a damper shelf, thelower ends of said vertical portionsbeing disposed above the lower endof the damper casing, the throat and rear walls below their verticalportions diverging downwardly.

5. A sheet metal damper casing comprising side, front and rear walls,the side walls converging upwardly, the front and rear walls embodyingconfronting vertical por-l tions combining with the side walls-toproduce a throat, the vertical section of the rear wall being ofconsiderably less length than the vertical section of the front wall andhaving its lower end disposed slightly above the lower end of thevertical section of the front wall, the rear wall from the upper end ofthe vertical section extending horizontally'rearwardly' to provide adamper shelf, thelower ends of said vertical portions being disposedabove the lower end of the damper casing, the throat and rear wallsbelow their vertical portions diverging ing in shape to the rear wall ofthe damper.

6. A sheet metal damper casing compris-' ing side, front and rear walls,the side Walls converging upwardly, the front and rear walls embodyingconfronting vertical portions combining with the side walls to produce athroat, the vertical section of the rear Wall being of considerably lesslength than the vertical section of the front Wall and having its lowerend disposed slightly above the lower end of the vertical section of thefront wall, the rear wall from the upper end of the vertical sectionextending horizontally rearwardly to provide a damper shelf, the lowerends of said vertical portions being disposed above the lower end of thedamper, the throat and rear walls below their vertical portionsdiverging downwardly, a damper plate seated u on the damper shelfand'control elements or said plate extending downwardly through thethroat of the damper casin and conforming in shape to the rear wall 0the damper casing, the corners of the rear ends of the side edges of theplate being cut-away to therebly permit oscillation of the ciarge sootsupported thereby through the throat of the damper casing.

In testimony whereof I hereunto ailix my signature.

MATTHEW SERDYN.

plate to dis-'

